Plinkin' Logs
Member
Before say anything I am aware that some people prefer a 1:7 twist rate for ARs. I had recently had a conversation that brought up a fact that I hadn't until recently considered. Apparently initially Colt wanted to make the ARs 1:9 for extended barrel life but NATO specs required 1:7 for the longer tracer rounds. Only recently have rounds like the mk262 been developed that take advantage of the 1:7 potential.
According to what I've read a 1:9 barrel should last approx. 25% longer due to the reduced twist rate.
Do you feel like this is a viable consideration when choosing a barrel twist rate for your rifle?
According to what I've read a 1:9 barrel should last approx. 25% longer due to the reduced twist rate.
Do you feel like this is a viable consideration when choosing a barrel twist rate for your rifle?